The Joomla Project has announced the immediate availability of Joomla 1.5.13.
All designers should take note that this is a security release and the Joomla Project is advising an immediate upgrade for the popular CMS

Despite the fact that Joomla 1.5.12 was only released three weeks ago this 1.5.13 security release contains 26 bug fixes, two moderate-level security fixes and one low-level security fix!

This security release plugs a critical vulnerability in the Tiny browser (included with the TinyMCE 3.0 editor) that allowed files to be uploaded or deleted without a user needing to be logged in!

The Joomla content management system is available as part of the Fantastico package that is supplied by Intrahost in its Linux cPanel web hosting packages. Fantastico enables the automatic installation of Joomla on your web host account. You can also install Joomla manually on your web hosting account by downloading from the following links: